Business Segment Information (Tables)

3 Months Ended

Mar. 31, 2013

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Segment information for the periods presented below was as follows:

	Pipeline Transportation		Refinery Services			Supply & Logistics			Total
Three Months Ended March 31, 2013
Segment margin (a)	$	25,196	$	17,965		$	28,904		$	72,065
Capital expenditures (b)	$	83,852	$	352		$	17,611		$	101,815
Revenues:
External customers	$	17,305	$	52,179		$	1,077,730		$	1,147,214
Intersegment (c)	3,474		(2,695		)	(779		)	—
Total revenues of reportable segments	$	20,779	$	49,484		$	1,076,951		$	1,147,214
Three Months Ended March 31, 2012
Segment margin (a)	$	25,347	$	17,249		$	17,656		$	60,252
Capital expenditures (b)	$	246,428	$	910		$	40,831		$	288,169
Revenues:
External customers	$	14,976	$	50,373		$	895,368		$	960,717
Intersegment (c)	4,433		(2,328		)	(2,105		)	—
Total revenues of reportable segments	$	19,409	$	48,045		$	893,263		$	960,717

Total assets by reportable segment were as follows:

	March 31, 2013		December 31, 2012
Pipeline transportation	$	964,906	$	890,652
Refinery services	415,088		414,170
Supply and logistics	837,426		750,347
Other assets	57,863		54,495
Total consolidated assets	$	2,275,283	$	2,109,664

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

(a) A reconciliation of Segment Margin to income before income taxes for the periods presented is as follows:

	Three Months Ended March 31,
	2013			2012
Segment Margin	$	72,065		$	60,252
Corporate general and administrative expenses	(10,837		)	(8,621		)
Depreciation and amortization	(15,053		)	(14,779		)
Interest expense	(11,441		)	(10,596		)
Distributable cash from equity investees in excess of equity in earnings	(6,564		)	(6,733		)
Non-cash items not included in segment margin	(4,295		)	1,324
Cash payments from direct financing leases in excess of earnings	(1,232		)	(1,221		)
Income before income taxes	$	22,643		$	19,626

(b) Capital expenditures include maintenance and growth capital expenditures, such as fixed asset additions (including enhancements to existing facilities and construction of internal growth projects) as well as acquisitions of businesses and interests in equity investees. Capital spending in our pipeline transportation segment included $64.5 million and $33.5 million during the three months ended March 31, 2013 and March 31, 2012, respectively, representing capital contributions to our SEKCO equity investee to fund our share of the construction costs for its pipeline. For the three months ended March 31, 2012, capital spending in our pipeline transportation segment also included $205.6 million for the acquisition of interests in several Gulf of Mexico pipelines.

(c) Intersegment sales were conducted under terms that we believe were no more or less favorable than then-existing market conditions.